local-time-compare.go

package main

import (
	"fmt"
	"time"
)

// local time calculation
func main() {
	currentTime := time.Now()
	zone, offset := currentTime.Zone()
	offset /= 3600
	fmt.Printf("current timezone %v, offset as hour %v\n", zone, offset)

	timeFormat := "2006-01-02T15:04:05Z07"

	timeStartInput := "03:00:00"
	timeEndInput := "19:12:00"

	timeStartAsLocal := fmt.Sprintf("%d-%02d-%02dT%s%+03d", currentTime.Year(), int(currentTime.Month()), currentTime.Day(), timeStartInput, offset)
	timeEndAsLocal := fmt.Sprintf("%d-%02d-%02dT%s%+03d", currentTime.Year(), int(currentTime.Month()), currentTime.Day(), timeEndInput, offset)

	fmt.Println("timeStartAsLocal", timeStartAsLocal)
	fmt.Println("timeEndAsLocal", timeEndAsLocal)

	start, _ := time.Parse(timeFormat, timeStartAsLocal)
	end, _ := time.Parse(timeFormat, timeEndAsLocal)
	end = end.Add(1 * time.Second)

	fmt.Println("start:", start.Format(time.RFC3339))
	fmt.Println("end:", end.Format(time.RFC3339))

	fmt.Println(start, end)
	fmt.Println(time.Now().After(start))
	fmt.Println(time.Now().Before(end))
}